If one of the acute angles in a right triangle is 36°, what is the measure of the other acute angle?

A.
36°

B.
54°

C.
90°

D.
144°

B. 54°

To find the measure of the other acute angle in a right triangle, you need to subtract the given acute angle from 90° (the measure of a right angle). In this case, the given acute angle is 36°.

So, to find the other acute angle, we can calculate:
90° - 36° = 54°

Therefore, the measure of the other acute angle in this right triangle is 54°.

The correct answer is B. 54°.

In a right triangle, one of the angles is always 90°. Since the given angle is 36° and it is an acute angle, the other acute angle can be found by subtracting the given angle from 90°:

90° - 36° = 54°

Therefore, the measure of the other acute angle is 54°.

So, the answer is B. 54°.